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Why it snows so much in the frozen North(Phys.org) —When it doesn't show signs of stopping, most of us just mumble a few choice words and get out the snow shovel. Scientists, however, wonder where all that snow is coming from, particularly in pristine places like the Arctic. Raymond Shaw and his colleagues may have found an answer.http://phys.org/news307009446.html
EarthMon, 23 Dec 2013 08:24:21 ESTnews307009446Dust dries clouds by gobbling up water vapor: Scientists show how different cloud seeds can influence greenhouse effect(Phys.org)—High in the atmosphere, cold and wispy cirrus clouds are the setting for a climate competition. Researchers at Pacific Northwest National Laboratory found that dust particles in the atmosphere can grab enough water vapor available to reduce the overall number of ice crystals formed in those clouds by other particles. Though somewhat scarce, the cloud-drying dust has an impact on Earth's incoming and outgoing energy that results in a net effect to cool the planet.http://phys.org/news281087625.html
EarthTue, 26 Feb 2013 08:20:05 ESTnews281087625Clouds + Mineral Dust = RainA team of atmospheric scientists, including Dr. Xiaohong Liu of Pacific Northwest National Laboratory (PNNL), found a critical link between the size of dust particles in clouds and their likelihood to produce rain. http://phys.org/news201272468.html
EarthTue, 17 Aug 2010 14:20:01 ESTnews201272468Amount of dust, pollen matters for cloud precipitation, climate changeA lot of large particles of dust and pollen in the atmosphere may make your nose twitch, but they can lead directly to greater precipitation in clouds, Colorado State University atmospheric scientists have discovered for the first time.http://phys.org/news195145467.html
EarthMon, 07 Jun 2010 16:04:51 ESTnews195145467First direct observations of biological particles in high-altitude ice cloudsA team of UC San Diego-led atmospheric chemistry researchers moved closer to what is considered the "holy grail" of climate change science when it made the first-ever direct detection of biological particles within ice clouds.http://phys.org/news161787442.html
EarthSun, 17 May 2009 13:58:01 ESTnews161787442